Spanish royal family is forced to deny claims former king Juan Carlos, 83, is seriously ill and may return from self-imposed exile for treatment
Juan Carlos, 83, has been living in Abu Dhabi since last year when he left Spain amid police investigations into his finances
Pictures published of him since then have shown former monarch looking frail
Royal expert tweeted on Monday saying that Juan Carlos is now seriously ill
But the Royal Household quickly denied this, saying he is in good health